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- W2037621969 abstract "The collection and voltammetry of gold(III) at carbon paste electrodes modified with the green alga Chlorella pyrenoidosa are explored. This surface modifier possesses a high binding capacity for gold compared to other species of algae. Tetrachloroaurate(III) is thus bioaccumulated on the electrode surface, under open-circuit conditions, and the electrode is transferred to an electrochemical cell for voltammetric measurements. Regeneration of the surface (in a sodium cyanide solution) allows use of a single electrode in multiple analytical determinations. Comparison with solution-phase spectroscopic observations offers better understanding of the gold collection process. Only a small fraction of the surface-bound gold is electroactive. Parametric experiments, including the effects of paste composition, solution pH, accumulation time, or gold(III) concentration are reported." @default.
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- W2037621969 date "1988-10-01" @default.
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- W2037621969 title "Bioaccumulation and voltammetric behavior of gold at alga-containing carbon paste electrodes" @default.
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- W2037621969 doi "https://doi.org/10.1016/0022-0728(88)85082-4" @default.
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